Bosniak肾囊性病变分类的临床应用价值

目的 探讨Bosniak分类在肾囊性病变中的临床应用价值.方法 收集2002至2007年手术治疗497例肾囊性病变患者资料.男284例,女213例.平均年龄42岁.病变位于左侧212例,右侧265例,双侧20例.病变直径1.8～11.5 cm,平均5.4 cm.按照Bosniak分类,I类囊肿339例、Ⅱ类49例(其中Ⅱ F 23例)、Ⅲ类44例、Ⅳ类65例.行肾囊肿去顶减压术372例,肾部分切除术51例,根治性肾切除术74例.结果 病理报告为肾恶性肿瘤89例(透明细胞癌74例、乳头状癌12例、低分化癌3例),良性病变408例(单纯囊肿382例、囊肿伴出血6例、囊肿伴感染6例、多房囊性肾瘤5例、纤维囊壁组织9例).I类囊肿中恶性病变3例(O.9%)、Ⅱ类中5例10.2%,其中非ⅡF为7.7%(2/26),ⅡF为13.O%(3/23)3、Ⅲ类中23例(52.3%)、Ⅳ类中58例(89.2%).组间比较差异有统计学意义(P0.05).403例获随访,随访时间1～5年.75例恶性病变患者中术后1～5年出现肿瘤局部复发和(或)转移9例;328例良性病变中,术后2～5年出现囊肿复发26例.结论 Bosniak分类I类和Ⅱ类肾囊肿一般并不需要积极的外科处理,但ⅡF类囊肿和直径进行性增大以及形态变化明显的囊肿需要引起重视;Ⅲ、Ⅳ类肾囊肿恶变率较高,具备明确手术治疗指征,建议积极处理.

Application significance of Besniak renal cyst dassification

Objective To evaluate the application significance of Bosniak renal cyst classification. Methods The operations of 497 cases of cystic renal masses were performed from 2002 to 2007 in our hospital.The average age of these cases was 42-years old,the average diameter of renal cysts was 5.4 cm. There were 212 left lesions,265 right and 20 bilateral.According to Bosniak classification,there were 339 cases of category I,49 cases of category Ⅱ(including 23 cases of category ⅡF),44 cases of category Ⅲ and 65 cases of category Ⅳ.Renal cystectomy was performed in 372 cases when nephron sparing surgery performed in 51 eases and radical nephrectomy performed in 74 cases.Results Malignant tumors were found in 89 cases and benign lesions were found in 408 cases.The malignant rate was 0.9% in category I,10.2% in category Ⅱ(13.O%in category ⅡF),52.3% in category Ⅲ,89.2% in category Ⅳ.There was significant difference among the 4 groups,but there was no significant difference between category ⅡF and non-Ⅱ F of category Ⅱ.403 cases were followed up for 1-5 years with 75 cases of malignancy and 328 cases of benign lesions.Recurrence or metastasis was found in 9 malignant cases.Conclusions Careful follow-up should be performed in category I and Ⅱ,especially in the cases of Ⅱ F category and the eases with changes of diameter or morphology.It is definite that surgery should be performed in the cases of renal cyst with category Ⅲ or Ⅳ for their high malignant rate.